text: # Copyright 2019 Open Source Robotics Foundation, Inc.
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #     http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  import pytest
  import rclpy
  from rclpy.handle import InvalidHandle
  
  
  def test_handle_destroyed_immediately():
      context = rclpy.context.Context()
      rclpy.init(context=context)
  
      try:
          node = rclpy.create_node('test_handle_destroyed_immediately', context=context)
          node.destroy_node()
          with pytest.raises(InvalidHandle):
              with node.handle:
                  pass
      finally:
          rclpy.shutdown(context=context)
  
  
  def test_handle_destroyed_when_not_used():
      context = rclpy.context.Context()
      rclpy.init(context=context)
  
      try:
          node = rclpy.create_node('test_handle_destroyed_when_not_used', context=context)
          with node.handle:
              node.destroy_node()
  
          with pytest.raises(InvalidHandle):
              with node.handle:
                  pass
      finally:
          rclpy.shutdown(context=context)
  